利用GC-MS对西太平洋富钴结壳的分子化石进行了检测,发现了结壳的表层和核部均存在不可辨别的复杂混合物(UCM),探讨了UCM对富钴结壳成矿过程中微生物作用的指示意义。研究结果表明,富钴结壳成矿过程微生物作用的强度存在时间和空间上的差异。富钴结壳成矿的早期,UCM含量相对高,微生物作用强烈;海水深度大,UCM含量高,微生物改造作用强。UCM的时空变化反映了海洋环境变化对微生物作用的影响。 The molecular fossils of cobalt-rich crusts in the western Pacific were detected by GC-MS and found that there were unidentifiable complex mixtures (UCMs) on both the surface and the core of the crusts. The effects of UCM on the micro-organisms Meaning of meaning of action. The results show that the intensity of microbial action in cobalt-rich crusts is different in time and space. In the early stage of the cobalt-rich crust mineralization, the UCM content was relatively high and the microorganism had a strong effect; the seawater depth was large, the UCM content was high, and the microbial transformation was strong. The temporal and spatial variation of UCM reflects the effect of changes in the marine environment on the action of microorganisms.